Multiple not exists in MYSQL to check count of rows - mysql

I am trying to make this query work, here is my logic , I am trying to select record thats there is not at LEAST NOT one of these options:
1). status = Approved AND end_date >now
2). status =Approved AND end_date is NULL
3). status = Pending And end_date is NULL & COUNT(id) =1
4). status =Pending AND end_date >now & COUNT(id) =1
5). status =Pending AND end_date <now & COUNT(id) =1
how to accomplish this , this is what I have so far I am not sure how to check for COUNT(id) = 1 in conditions 3, 4, and 5?
SELECT
*
FROM
outreach
WHERE
NOT EXISTS (
SELECT
*
FROM
outreach_links
WHERE
outreach_links.outreach_id = outreach.id
AND STATUS = "Approved"
AND end_date > now()
)
AND NOT EXISTS (
SELECT
*
FROM
outreach_links
WHERE
outreach_links.outreach_id = outreach.id
AND STATUS = "Approved"
AND end_date IS NULL
)
AND NOT EXISTS (
SELECT
*
FROM
outreach_links
WHERE
outreach_links.outreach_id = outreach.id
AND STATUS = "Pending"
AND end_date > now()
)
AND NOT EXISTS (
SELECT
*
FROM
outreach_links
WHERE
outreach_links.outreach_id = outreach.id
AND STATUS = "Pending"
AND end_date IS NULL
)
AND NOT EXISTS (
SELECT
*
FROM
outreach_links
WHERE
outreach_links.outreach_id = outreach.id
AND STATUS = "Pending"
AND end_date < now()
)

select
o.*,
SUM(if(ol.status = "Approved" and (ol.end_date > now() or end_date is null), 1, 0)) as cond1,
SUM(if(ol.status = "Pending" and (ol.end_date != now() or end_date is null), 1, 0)) as cond2
from
outreach o
left join
outreach_links ol on ol.outreach_id = o.id
group by
o.id
having
cond1 = 0 and cond2 != 1
;
Not sure if that's you are looking for, but you can try it.
cond2 != 1 makes your COUNT(id) = 1 condition (if there are more than one linked id in outreach_links cond2 will be greater than 1)

Related

MySQL query with WHERE subquery does not work on no result

I have written a complex query in MySQL to return a result.
it works perfectly
Until .....
the subquery returns no result
how to write an if or IF null then substitute in date '2020-06-03'
any help greatly appreciated
SELECT
*
FROM
trades
WHERE
stock_code = 'IHVV'
AND acc_id = '4'
AND tx_date >
(SELECT tx_date
FROM
( SELECT *, ( #sum_units := #sum_units + units ) AS sum_units
FROM
trades
JOIN ( SELECT #sum_units := 0 ) params
WHERE
stock_code = 'IHVV'
AND acc_id = '4'
AND tx_date <= '2021-06-30'
AND ( transfer_date IS NULL OR transfer_date <= '2021-06-30' )
ORDER BY
tx_date ASC,
units ASC
) AS query1
WHERE
tx_date < DATE_SUB( '2021-06-30', INTERVAL 1 YEAR )
AND sum_units = 0
ORDER BY
tx_date DESC
LIMIT 1
)
AND tx_date <= '2021-06-30'
AND ( transfer_date IS NULL OR transfer_date <= '2021-06-30' )
ORDER BY
tx_date ASC,
units ASC
clarification
I have written a main query and in one of the where clauses I am using a subquery and this subquery works well, until this subquery does not return a result and my main query stops working, so I would like to on no result in this subquery substitute a value on no result so the main query can function normally
example needed
select * from table where date > (ifnull(subquery, "2002-01-01"))
I get
incorrect parameter count in the call to native function "IFNULL'
AND THE ANSWER IS: ---> :)
thanks guys for all your suggestions
much appreciated
SELECT *
FROM trades
WHERE stock_code = 'IHVV'
AND acc_id = '4'
AND tx_date >
#last 0 date out of 1 year perhaps change the date range by from date and to date in the interval 1 year area
(SELECT COALESCE(
(SELECT tx_date
FROM (SELECT *, (#sum_units := #sum_units + units) AS sum_units
FROM trades
JOIN ( SELECT #sum_units := 0 ) params
WHERE stock_code = 'ANZ'
AND acc_id = '4'
AND tx_date <= '2022-06-30'
AND (transfer_date IS NULL OR transfer_date <= '2022-06-30' ))
ORDER BY tx_date ASC, units ASC) as query1
WHERE tx_date < DATE_SUB('2022-06-30',INTERVAL 1 YEAR)
AND sum_units = 0
ORDER BY tx_date DESC
LIMIT 1), 'TODATE')
AND tx_date <= '2022-06-30'
AND (transfer_date IS NULL OR transfer_date <= '2022-06-30' )
ORDER BY tx_date ASC, units ASC

how to decrease executing select query time

decreasing running time (select query executing time)
even query is not working
it is reducing code line
there are 80 tables
select
(ant_return_loss_pass='pass')+(ant_cross_isolation_pass='pass') as pass_count,
(ant_return_loss_pass='fail')+(ant_cross_isolation_pass='fail') as fail_count,
(ant_return_loss_pass='') +(ant_cross_isolation_pass='') as blank_count
from
(
select A.serial_no,
A.pass_fail as ant_return_loss_pass
from ant_return_loss A,
(
select max(register_date) as date
from ant_return_loss
where 1=1
and serial_no >= '184500074'
and serial_no <= '184500076'
group by serial_no
) B
where 1 = 1
and A.register_date = B.date
)AA
,(
select A.serial_no,
A.pass_fail as ant_cross_isolation_pass
from ant_cross_isolation A,
(
select max(register_date) as date
from ant_cross_isolation
where 1=1
and serial_no >= '184500074'
and serial_no <= '184500076'
group by serial_no
) B
where 1 = 1
and A.register_date = B.date
)BB
where 1=1
and AA.serial_no = BB.serial_no
not working or working 600 sec
The query below uses explicit join syntax and case expressions to make you query easier to understand:
SELECT
COUNT( CASE WHEN ant_return_loss_pass = 'pass' AND
ant_cross_isolation_pass = 'pass' THEN 1 END ) AS pass_count
, COUNT( CASE WHEN ant_return_loss_pass = 'fail' AND
ant_cross_isolation_pass = 'fail' THEN 1 END ) AS fail_count
, COUNT( CASE WHEN ant_return_loss_pass = '' AND
ant_cross_isolation_pass = '' THEN 1 END ) AS blank_count
FROM (
SELECT
A.serial_no
, A.pass_fail AS ant_return_loss_pass
FROM ant_return_loss A
INNER JOIN (
SELECT MAX( register_date ) AS date
FROM ant_return_loss
WHERE serial_no >= '184500074'
AND serial_no <= '184500076'
GROUP BY serial_no
) B ON A.register_date = B.date
) AA
INNER JOIN (
SELECT
A.serial_no
, A.pass_fail AS ant_cross_isolation_pass
FROM ant_cross_isolation A
INNER JOIN (
SELECT MAX( register_date ) AS date
FROM ant_cross_isolation
WHERE serial_no >= '184500074'
AND serial_no <= '184500076'
GROUP BY serial_no
) B ON A.register_date = B.date
) BB ON AA.serial_no = BB.serial_no
To examine if this can be improved for performance however requires access to your database. For example do you indexes for ant_return_loss.serial_no or ant_cross_isolation.serial_no these will aid the where clauses of the subqueries.
Have you run any explain plans on the query? see: https://dev.mysql.com/doc/refman/5.7/en/explain.html
Note to avoid long running time you can use explain on separated portions of the overall query, look for indexes that may assist: e.g.
explain
SELECT MAX( register_date ) AS date
FROM ant_return_loss
WHERE serial_no >= '184500074'
AND serial_no <= '184500076'
GROUP BY serial_no
then:
explain
SELECT
A.serial_no
, A.pass_fail AS ant_return_loss_pass
FROM ant_return_loss A
INNER JOIN (
SELECT MAX( register_date ) AS date
FROM ant_return_loss
WHERE serial_no >= '184500074'
AND serial_no <= '184500076'
GROUP BY serial_no
) B ON A.register_date = B.date
until you have examined all portions for way to improve performance.

Sql server errors in query

I am trying to collaborate 3 queries to perform arithmetic operation. The queries are shown in
(SELECT ITEM_ID,ISNULL(SUM(REC_GOOD_QTY),0)
FROM INVENTORY_ITEM
WHERE COMPANY_ID = 1
AND INVENTORY_ITEM.COMPANY_BRANCH_ID = 1
AND INVENTORY_ITEM.INV_ITEM_STATUS = 'Inward'
AND GRN_DATE < CAST('2017-01-10 00:00:00.0' AS DATETIME)
GROUP BY INVENTORY_ITEM.ITEM_ID) -
(SELECT ITEM_ID, SUM ( TOTAL_LITRE )
FROM STOCK_REQUISITION_ITEM B, STOCK_REQUISITION A
WHERE A.ID = B.REQUISITION_ID
AND A.COMPANY_ID = 1
AND A.REQ_FROM_BRANCH_ID = 1
AND A.REQUISITION_DATE < CAST('2017-01-10 00:00:00.0' AS DATETIME)
GROUP BY B.ITEM_ID) +
(SELECT ITEM_ID, SUM ( RETURN_QUANTITY )
FROM STOCK_RETURN_ITEM B, STOCK_RETURN A
WHERE A.ID = B.STOCK_RETURN_ID
AND A.COMPANY_ID = 1
AND A.COMPANY_BRANCH_ID = 1
AND A.RETURN_DATE <= CAST('2017-01-10 00:00:00.0' AS DATETIME)
GROUP BY B.ITEM_ID)
I am getting this error.
[Err] 42000 - [SQL Server]Incorrect syntax near '-'.
42000 - [SQL Server]Incorrect syntax near '+'
Not much to go on here for details. And we aren't actually sure if you are using mysql or sql server but pretty sure you are using sql server. I think you can accomplish what you are trying to do with something along these lines.
with Iventory as
(
SELECT i.ITEM_ID
, GoodQty = ISNULL(SUM(i.REC_GOOD_QTY), 0)
FROM INVENTORY_ITEM i
WHERE COMPANY_ID = 1
AND i.COMPANY_BRANCH_ID = 1
AND i.INV_ITEM_STATUS = 'Inward'
AND i.GRN_DATE < '2017-01-10'
GROUP BY i.ITEM_ID
)
, StockRequisition as
(
SELECT ITEM_ID
, TotalLitre = SUM(TOTAL_LITRE)
FROM STOCK_REQUISITION_ITEM B
JOIN STOCK_REQUISITION A ON A.ID = B.REQUISITION_ID
WHERE A.COMPANY_ID = 1
AND A.REQ_FROM_BRANCH_ID = 1
AND A.REQUISITION_DATE < '2017-01-10'
GROUP BY B.ITEM_ID
)
StockReturn as
(
SELECT ITEM_ID
, ReturnQuantity = SUM(RETURN_QUANTITY)
FROM STOCK_RETURN_ITEM B
JOIN STOCK_RETURN A ON A.ID = B.STOCK_RETURN_ID
WHERE A.COMPANY_ID = 1
AND A.COMPANY_BRANCH_ID = 1
AND A.RETURN_DATE <= '2017-01-10'
GROUP BY B.ITEM_ID
)
select i.ITEM_ID
, MyCalculation = i.GoodQty - isnull(Req.TotalLitre, 0) + isnull(sr.ReturnQuantity, 0)
from Inventory i
left join StockRequisition sr on sr.ITEM_ID = i.ITEM_ID
left join StockReturn Req on Req.ITEM_ID = i.ITEM_ID
In your queries you always returns two fields ITEM_ID and a numeric field.
To apply an arithmetical operation you must return one numeric field
The first query:
SELECT ITEM_ID,ISNULL(SUM(REC_GOOD_QTY),0)
becomes
SELECT ISNULL(SUM(REC_GOOD_QTY),0)
The second query:
SELECT ITEM_ID, SUM ( TOTAL_LITRE )
becomes
SELECT SUM ( TOTAL_LITRE )
The third query:
SELECT ITEM_ID, SUM ( RETURN_QUANTITY )
becomes
SELECT SUM ( RETURN_QUANTITY )
So the GROUP BY returns more than one row per query
UPDATE
i try to rewrite your query:
SELECT DISTINCT ii.item_id,
ISNULL(
(SELECT SUM(ii2.rec_good_qty)
FROM inventory_item ii2
WHERE ii2.item_id = ii.item_id
AND ii.company_id = 1
AND ii.company_branch_id = 1
AND ii.inv_item_status = 'Inward'
AND ii.grn_date < CAST('2017-01-10 00:00:00.0' AS DATETIME))
,0) -
ISNULL(
(SELECT SUM(total_litre)
FROM stock_requisition_item b
JOIN stock_requisition a
ON a.id = b.requisition_id
WHERE a.company_id = 1
AND a.req_from_branch_id = 1
AND a.requisition_date < CAST('2017-01-10 00:00:00.0' AS DATETIME))
,0) +
ISNULL(
(SELECT SUM(return_quantity)
FROM stock_return_item b
JOIN stock_return a
ON a.id = b.stock_return_id
WHERE a.company_id = 1
AND a.company_branch_id = 1
AND a.return_date <= CAST('2017-01-10 00:00:00.0' AS DATETIME))
,0) AS result
FROM inventory_item ii
WHERE ii.company_id = 1
AND ii.company_branch_id = 1
AND ii.inv_item_status = 'Inward'
AND ii.grn_date < CAST('2017-01-10 00:00:00.0' AS DATETIME)

SQL selection of last period

I have a table like this:
<table border="1" cellspacing="0" cellpadding="5">
<tr><td>ID</td><td>status</td><td>start_date</td><td>end_date</td></tr>
<tr><td>1</td><td>A</td><td>2015-01-01</td><td>2015-12-31</td></tr>
<tr><td>1</td><td>B</td><td>2016-01-01</td><td>NULL</td></tr>
<tr><td>2</td><td>C</td><td>NULL</td><td>2016-12-31</td></tr>
<tr><td>3</td><td>D</td><td>NULL</td><td>NULL</td></tr>
</table>
I must do a trigger in MySQL to update a main table with the last status of a subject.
To do this I must select for every ID the last status based on the period between start_date and end_date that can be NULL if didn't known.
I write this SQL statement test:
SELECT *
FROM My_Table AS T
WHERE T.start_date Is Null AND
T.end_date In(SELECT MAX(end_date) FROM My_Table WHERE ID = T.ID)
OR
T.start_date In(SELECT MAX(start_date) FROM My_Table WHERE ID = T.ID) AND
T.end_date Is Null
OR
T.start_date In(SELECT MAX(start_date) FROM My_Table WHERE ID = T.ID) AND
T.end_date In(SELECT MAX(end_date) FROM My_Table WHERE ID = T.ID
);
Is there a shorten method to do this?
In practice I want a WHERE clause that catch each of these cases (a = start_date, b=end_date):
a = MAX AND b = MAX OR
a = NULL AND b = MAX OR
a = MAX AND b = NULL OR
a = NULL AND b = NULL
Here's a slightly simplified query which returns exactly the same result set as the query in your question. It uses only two subqueries instead of four (no duplicated subqueries):
SELECT *
FROM My_Table AS T
WHERE
(T.start_date Is Null OR T.start_date = (SELECT MAX(start_date) FROM My_Table WHERE ID = T.ID)) AND
(T.end_date Is Null OR T.end_date = (SELECT MAX(end_date) FROM My_Table WHERE ID = T.ID)) AND
(T.start_date Is NOT Null OR T.end_date Is NOT Null)
;
Note that it does NOT include the a = NULL AND b = NULL case. To include it as well, the last AND-clause must be removed, i.e.:
SELECT *
FROM My_Table AS T
WHERE
(T.start_date Is Null OR T.start_date = (SELECT MAX(start_date) FROM My_Table WHERE ID = T.ID)) AND
(T.end_date Is Null OR T.end_date = (SELECT MAX(end_date) FROM My_Table WHERE ID = T.ID))
;

Convert Mysql Query to Laravel Eloquent

I am using Laravel 5.1 in my application.
My MySQL Query is
SELECT * FROM (SELECT uu.*,t.left_id AS meb_id,(CAST(t.pair AS UNSIGNED) - IFNULL(p.pair,0)) AS pair FROM (SELECT left_id,
(CASE
WHEN ((SELECT COUNT(meb_id) FROM user_count WHERE left_id=u.left_id AND active = 1 AND join_date <= '1442255400000') >= (SELECT COUNT(meb_id) FROM user_count WHERE right_id=u.left_id AND active = 1 AND join_date <= '1442255400000')*2)
THEN (SELECT COUNT(meb_id) FROM user_count WHERE right_id=u.left_id AND active = 1 AND join_date <= '1442255400000')
WHEN ((SELECT COUNT(meb_id) FROM user_count WHERE left_id=u.left_id AND active = 1 AND join_date <= '1442255400000') < (SELECT COUNT(meb_id) FROM user_count WHERE right_id=u.left_id AND active = 1 AND join_date <= '1442255400000')*2)
THEN ((SELECT COUNT(meb_id) FROM user_count WHERE right_id=u.left_id AND active = 1 AND join_date <= '1442255400000') /2)
WHEN ((SELECT COUNT(meb_id) FROM user_count WHERE right_id=u.left_id AND active = 1 AND join_date <= '1442255400000') >= (SELECT COUNT(meb_id) FROM user_count WHERE left_id=u.left_id AND active = 1 AND join_date <= '1442255400000')*2)
THEN (SELECT COUNT(meb_id) FROM user_count WHERE left_id=u.left_id AND active = 1 AND join_date <= '1442255400000')
WHEN ((SELECT COUNT(meb_id) FROM user_count WHERE right_id=u.left_id AND active = 1 AND join_date <= '1442255400000') < (SELECT COUNT(meb_id) FROM user_count WHERE left_id=u.left_id AND active = 1 AND join_date <= '1442255400000')*2)
THEN ((SELECT COUNT(meb_id) FROM user_count WHERE left_id=u.left_id AND active = 1 AND join_date <= '1442255400000') / 2) END
) AS pair
FROM user_count AS u WHERE left_id <> 0 GROUP BY left_id) AS t
LEFT JOIN users AS uu ON uu.`id` = t.left_id
LEFT JOIN `total_payment` p ON t.left_id = p.`meb_id`
WHERE t.pair <> 0) AS f WHERE f.pair > 0 AND f.active = 1
How Can I convert it in Laravel Eloquent? I don't know how to use when case in laravel eloquent.
My Database schema is like this
user_count table
user table
total_payment table
Can anyone help me please?
Just surround your raw query with a DB::statement(""), like this :
DB::statement("INSERT INTO `mydatabase`.`mytable` (`id`, `created_at`, `updated_at`, `deleted_at`) VALUES ('7', '2015-09-26 13:38:48', '2015-09-26 13:43:41', NULL)");
It will do the job fine and works with seeds as well.
Eloquent is an ORM (Object-relational mapping), it means you can map your database to PHP objects (Eloquent use the Active Record pattern).
It is not a DBAL however you can still execute SQL queries through the DB Facade.
The example provided by you, the user table can be an Eloquent object.
class User extends Model{
/**
* The table associated with the model.
*
* #var string
*/
protected $table = 'user';
}
Since now you can fetch all user rows like:
$userCollection = (new User)->all(); //Fetch all rows
Or you can find one by PK like:
$user = (new User)->find(123); //123 is the PK of the User